Apple macOS up to 10.12.5 curl initialization

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.12.5. It has been rated as problematic. Affected by this issue is some unknown functionality of the component curl. The manipulation leads to initialization. This vulnerability is uniquely identified as CVE-2016-9594. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple macOS up to 10.12.5 (Operating System). It has been rated as critical. This issue affects an unknown function of the component curl. The manipulation with an unknown input leads to a initialization vulnerability. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl s internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable.

The bug was discovered 12/23/2016. The weakness was disclosed 07/19/2017 by Daniel Stenberg as HT207922 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2016-9594 since 11/23/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

Multiple issues were addressed by updating to version 7.54.0.

The vulnerability was handled as a non-public zero-day exploit for at least 81 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 97726 (Tenable SecurityCenter 5.x < 5.4.3 Multiple Vulnerabilities (TNS-2017-04) (httpoxy)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context l.

Upgrading to version 10.12.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97726) and SecurityFocus (BID 95094†). The entries VDB-104263, VDB-104227, VDB-104228 and VDB-104229 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97726
Nessus Name: Tenable SecurityCenter 5.x < 5.4.3 Multiple Vulnerabilities (TNS-2017-04) (httpoxy)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207922
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: macOS 10.12.6

Timelineinfo

11/23/2016 🔍
12/23/2016 +30 days 🔍
12/23/2016 +0 days 🔍
03/14/2017 +81 days 🔍
07/19/2017 +127 days 🔍
07/19/2017 +0 days 🔍
07/20/2017 +1 days 🔍
04/23/2018 +276 days 🔍
12/13/2022 +1695 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207922
Researcher: Daniel Stenberg
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9594 (🔍)
GCVE (CVE): GCVE-0-2016-9594
GCVE (VulDB): GCVE-100-104237
SecurityFocus: 95094 - cURL/libcURL CVE-2016-9594 Remote Security Bypass Vulnerability
SecurityTracker: 1037528

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 07/20/2017 15:35
Updated: 12/13/2022 11:55
Changes: 07/20/2017 15:35 (78), 10/30/2019 14:16 (6), 01/05/2021 11:52 (3), 01/05/2021 11:57 (1), 01/05/2021 12:05 (1), 12/13/2022 11:55 (12)
Complete: 🔍
Cache ID: 216:206:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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